King 3B Silversonic Trombone – 1959
H.N. White Era | Historical Archive Reference
Serial Number: 368285
📜 Historical Overview
The King 3B Silversonic is one of the most influential jazz trombones ever produced, and this 1959 example—serial number 368285—represents a well-preserved H.N. White–era instrument from the model’s golden period. Manufactured in Cleveland, Ohio during the late 1950s, early Silversonic trombones combined traditional hand-built construction with materials and proportions that many players still regard as benchmarks for balance, projection, and tonal character.
This instrument is preserved here as part of The Brass Exchange Historical Archive, serving as a documented reference for musicians, collectors, educators, and researchers studying early King Silversonic design and performance characteristics.
🔧 Instrument Specifications (Reference)
Bell: 8" sterling silver bell with gold-plated inner bell
Bore: .508"
Handslide: Nickel silver outer slide with yellow brass end crook
Finish: Original lacquer
Case: Original King coffin-style case
These specifications reflect original factory configuration typical of late-1950s H.N. White production.
🛠️ Preservation & Service History
This King 3B Silversonic came to The Brass Exchange from a long-time collector and had been carefully preserved prior to arrival. The instrument retains its original lacquer, including over the sterling silver bell and nickel silver slide—an increasingly uncommon trait among Silversonics of this era.
As part of our archival intake process, the trombone received a full professional service for documentation and play-testing purposes. This included a chemical cleaning, slide alignment verification, water key service, and a complete mechanical inspection. The handslide was confirmed to be well-aligned and responsive, exhibiting smooth action with only minimal wear consistent with age and careful use.
No restoration or cosmetic alteration was performed, allowing the instrument to remain an authentic reference example.
🎼 Player Perspective
From a jazz trombonist’s perspective, the King 3B Silversonic remains a defining voice. Since its introduction in the 1950s, the core design of the 3B has changed very little—an indication of how complete the concept was from the outset.
Sterling silver bells respond differently than traditional brass. They typically require more energy to fully resonate, but once engaged, they deliver exceptional projection, clarity, and tonal density. At full output, a Silversonic can project effortlessly without losing core or focus, making it equally effective for lead playing, solo work, and ensemble settings.
Many players describe the experience as having “headroom” that standard brass bells simply cannot match.
🏛️ Design & Era Context
Early Cleveland-built King 3B Silversonics feature subtle dimensional differences compared to later production and modern interpretations. Notably, many H.N. White–era 3Bs used slightly longer tuning slide crooks, which resulted in different slide positions and balance characteristics than contemporary models.
Combined with heavier-gauge slide tubing and period-correct alloys, these design choices contribute to the resonance, stability, and projection that continue to distinguish vintage Silversonics from modern reproductions.
🔍 Modern Perspective
While current King 3B Silversonic models are built as modern interpretations of this classic design, original H.N. White–era instruments like this example remain highly sought after for their materials, craftsmanship, and playing characteristics. For many professionals and collectors, vintage Silversonics represent not only outstanding musical tools but also historically significant artifacts from one of America’s most influential brass manufacturers.
❓ Questions Trombone Players Often Ask
What makes the King 3B Silversonic unique?
The combination of a sterling silver bell with a gold-plated interior produces a distinctive blend of brilliance, projection, and tonal depth that differs fundamentally from standard brass bells.
How do early H.N. White models compare to modern versions?
Vintage examples typically feature heavier materials, different tuning slide proportions, and hand-built construction techniques that many players feel contribute to greater resonance and nuance than modern replicas.
🔧 Availability & Archive Status
This 1959 King 3B Silversonic Trombone (SN 368285) has been sold and is shown here as part of The Brass Exchange Historical Archive, where it serves as a long-term reference for collectors, musicians, and researchers.
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